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A053658
as a simple table
n
a(n)
1
2
2
6
3
8
4
18
5
26
6
42
7
62
8
94
9
130
10
188
11
264
12
372
13
506
14
678
[2,6,8,18,26,42,62,94,130,188,264,372,506,678]
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Last modified September 13 15:18 EDT 2024. Contains 375908 sequences. (Running on oeis4.)